HttpURLConnection下载文件带进度Code

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package com.louisgeek.checkappupdatebyfirim;import android.os.Environment;import android.util.Log;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.ProtocolException;import java.net.URL;/** * Created by louisgeek on 2016/8/19. */public class DownloadFileTool {    // 获得存储卡的路径    private static String sd_path = Environment.getExternalStorageDirectory() + "/";    private static String filePath = sd_path + "MyFileDir/Test/";    private static String saveFileAllName = filePath + "QQ.exe";    public static void doDownloadThread() {        new Thread(new DownloadFileThread()).start();    }    private static class DownloadFileThread implements Runnable {        @Override        public void run() {            FileOutputStream fileOutputStream=null;            InputStream inputStream =null;            //            try {                URL url = new URL("http://dldir1.qq.com/qqfile/qq/QQ8.6/18781/QQ8.6.exe");                //获取连接                HttpURLConnection connection = (HttpURLConnection) url.openConnection();                connection.setRequestMethod("GET");                connection.setConnectTimeout(5000);                connection.setRequestProperty("Connection", "Keep-Alive");                connection.setRequestProperty("Charset", "UTF-8");                connection.setDoOutput(true);                connection.setDoInput(true);                connection.setUseCaches(false);                //打开连接                connection.connect();                //获取内容长度                int contentLength = connection.getContentLength();                File file = new File(filePath);                // 判断文件目录是否存在                if (!file.exists()) {                    file.mkdir();                }                //file.mkdirs();                //输入流                 inputStream = connection.getInputStream();                File myFile = new File(saveFileAllName);                //输出流                 fileOutputStream = new FileOutputStream(myFile);                byte[] bytes = new byte[1024];                // int  index=0;                long totalReaded = 0;                int temp_Len;                while ((temp_Len = inputStream.read(bytes)) != -1) {                    // bytes[index]= (byte) temp_Len;                    // index++;                    totalReaded += temp_Len;                    Log.i("XXXX", "run: totalReaded:" + totalReaded);                    long progress = totalReaded * 100 / contentLength;                    Log.i("XXXX", "run: progress:" + progress);                    fileOutputStream.write(bytes, 0, temp_Len);                }              /*  byte[] bytes = new byte[1024];                while (inputStream.read(bytes)!=-1){                    fileOutputStream.write(bytes);                }*/            } catch (MalformedURLException e) {                e.printStackTrace();            } catch (ProtocolException e) {                e.printStackTrace();            } catch (IOException e) {                e.printStackTrace();            }finally {                try {                    if (fileOutputStream!=null){                        fileOutputStream.close();}                    if (inputStream!=null){                        inputStream.close();}                } catch (IOException e) {                    e.printStackTrace();                }            }        }    }}
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